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Home >> Ford >> 2003 >> Cutaway 7.3 F >> Repair and Diagnosis >> External Pages >> Different car >> Section 2050 (Engine Controls - Diagnostic Subroutines - 6.4L 99R Diesel -- F250-F550 Super Duty) >> Diagnostic Trouble Code (DTC) Charts and Descriptions >> P0529 - Fan Speed Sensor Circuit Intermittent

P0529 - Fan Speed Sensor Circuit Intermittent

WARNING: This page is about a different car, the 2008 Ford Pickup, 2008 Ford F550 Super Duty, 2008 Ford F450 Super Duty, and 2008 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
P0529 - FAN SPEED SENSOR CIRCUIT INTERMITTENT

Description:  The purpose of this diagnostic test is to find an intermittent fan speed signal. This is done by comparing a previous calibrated fan speed to the current fan speed. If there is change from the previous calibrated fan speed to the current fan speed, the DTC set.
Possible Causes: 
  • FSS circuit intermittently open
  • Damaged FSS sensor
  • Damaged PCM
Diagnostic Aids:  View the FSS PID to monitor the FSS input.
Application    Key On Engine Off  Key On Engine Running  Continuous Memory 
All   refer to PINPOINT TEST AH .